BB500
YZH
Product Description
In most crushing plants, the weakest link is the area where raw rock meets the primary crusher or grizzly: when oversize lodges here, the entire chain slows or stops. The YZH stationary rockbreaker boom system is installed precisely at this point—mounted on a fixed pedestal near the crusher cavity or grizzly screen—so operators can reach into the feed zone, rake down material, and break stuck boulders before they become full-blown blockages.
Instead of treating blockages as emergencies that require mobile equipment and manual tools, the plant runs with a dedicated boom system whose only job is to keep that area clear and safe shift after shift.
Oversize and bridged rock in the crusher cavity
Large boulders and slabs can jam between the crusher jaws or hang across the opening, forcing stoppages and hazardous clearing work.
The stationary boom positions the hydraulic hammer directly over these rocks, allowing operators to break them into manageable pieces and restore normal feed quickly.
Grizzly and feed bin hang-ups
On grizzly grids or feed bins, long and flat rocks often span openings, forming arches that starve the crusher and disrupt the flow to downstream equipment.
With its multi-joint articulation, the boom can rake, push, and break material along the grid or bin lip, keeping the openings clear and the feeder working at a stable rate.
Safety exposure and costly manual clearing
Manually barring down rock or using an excavator on the edge of the hopper exposes people and machines to falling rock, flyrock, and unstable piles.
Remote or cabin-based operation of the stationary rockbreaker means operators stay at a safe distance while still having fine control over boom movement and hammer blows.
Each stationary rockbreaker boom system is built as an integrated package:
Stationary boom and pedestal base
A fixed pedestal is anchored near the crusher or grizzly and supports the boom structure, which may be configured with 170° or up to 360° rotation depending on site layout.
The boom is fabricated from high-strength steel, with reinforced pivots and oversized main pins to handle continuous-duty rockbreaking in harsh, dusty environments.
Hydraulic breaker (hammer)
A matched hydraulic hammer is fitted at the boom tip, providing the impact energy needed for secondary breaking, oversize reduction, and clearing stubborn hang-ups.
The breaker and boom are designed together to deliver precise blows while minimizing accidental contact with crusher shells, grizzly rails, or bin structures.
Hydraulic power unit and circuits
An electric motor-driven hydraulic power unit (HPU) delivers pressurized oil to the boom cylinders and hammer, with appropriate cooling, filtration, and monitoring for long service life.
Directional, pressure, and flow control valves manage boom articulation and hammer striking with the responsiveness operators need for delicate positioning and heavy impact work.
Electrical and control system
PLC-based or relay logic control panels govern boom motion, hammer operation, interlocks, and safety functions such as overload protection and emergency stop.
Operators use joystick consoles or wireless remotes to maneuver the boom and fire the hammer from a safe distance, and the system can be integrated into plant control networks for status and alarms.
YZH stationary rockbreaker boom systems are used wherever oversize consistently threatens continuous flow:
Mounted at jaw or gyratory crusher inlets for secondary breaking and cavity clearing in surface and underground mines.
Positioned over grizzly screens or feed bins in aggregate and quarry plants to prevent bridging and keep feeders supplied.
Deployed at transfer points, ore passes, or special bins in cement, steel, or foundry plants where occasional large lumps or slag need fixed-position breaking.
In operation, when oversized rock blocks the crusher feed or grizzly, the operator swings and extends the boom into position, aligns the hammer with the obstruction, and delivers controlled blows until the material is reduced and flows through.
Although presented as a “YZH Stationary Rockbreaker Boom System,” each installation is engineered to the specific crusher layout and duty:
YZH engineers review plant drawings, crusher type, grizzly or bin geometry, and rock characteristics before proposing a boom series, breaker size, and pedestal placement.
Working envelope, rotation options, and boom length are defined so that all likely hang-up points in the crusher cavity and at the grizzly or bin are covered with sufficient reach and clearance.
Electrical, hydraulic, and structural interfaces are specified so that the system can be installed with minimum disruption and integrated cleanly into existing safety and control systems.
Optional features such as advanced remote controls, video-assisted operation, or condition monitoring can be added for operations targeting higher automation levels.
YZH specializes in pedestal and stationary rockbreaker boom systems, with a comprehensive range that has been proven across mines, quarries, and heavy industry worldwide.
Systems are built for high reliability and longevity—using reinforced structures, robust hydraulics, and CE-compliant electrical design—so they can withstand continuous exposure at the primary station.
A single supplier providing boom, breaker, power unit, and control simplifies engineering, installation, and ongoing service, and makes it easier to standardize oversize control across multiple crushers and grizzlies on site.
If your crusher cavity or grizzly screen is still the main source of unplanned downtime and safety risk, a YZH stationary rockbreaker boom system can turn that area into a controlled, remote-operated oversize management station.
Share your crusher or grizzly layout, feed conditions, and production targets, and YZH will configure a stationary rockbreaker boom system that matches your site and helps keep your operation moving at the required tons per hour.
